Benison JB-9 Service Manual Download Page 1 | Manualshive

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JB-9

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Summary of Contents for JB-9

Page 1: ...JB 9 F F F FM M M M T T T TR R R RA A A AN N N NS S S SC C C CE E E EI I I IVE VE VE VERS RS RS RS Service M M M Ma a a an n n nu u u ual al al al ...

Page 2: ...2 5KHz Intermodulation Response Rejection 70dB Audio Distortion 10 Adjacent Channel Power 65dB Occupied Bandwidth 16KHz RECE RECE RECE RECEI I I IVE VE VE VER R R R RF Sensitivity 0 2μV Audio Frequency Response 300 3000Hz Audio Output 0 5w Audio Distortion 10 A A A All ll ll ll s s s st t t ta a a at t t te e e ed d d d s s s sp p p pec ec ec ecifi ifi ifi ifica ca ca cations tions tions tions a a...

Page 3: ...ows the frequencies 2 2 2 2 R R R Rece ece ece ecei i i iv v v ve e e er r r r The freauency configuration of the receiver is shown in Fig 2 1 1 1 1 F F F Fr r r ron on on ont t t t e e e en n n nd d d d R R R RF F F F am am am amp p p plifi lifi lifi lifier er er er An incoming signal from the antenna is applied to an RF amplifier Q1 after passing through a transmit receive switch circuit D2 D3 a...

Page 4: ...cking whether the input voltage is higher or lower than the preset value 6 6 6 6 R R R Rece ece ece ecei i i iv v v ve e e e s s s si i i ign gn gn gna a a ali li li lin n n ng g g g QT DQT The output signal from FM IC U1 enters the microprocessor U10 U810 determines whether the QT or DQT matches the preset value and controls the AF Power and the speaker output sounds according to the squelch resu...

Page 5: ...n 5M is always output but turns off when the power is turned off to prevent malfunction of the microprocessor 5C is a common 5V and is output when SAVE is not set to OFF 5R is 5V for reception and output during reception 5T is 5V for transmission and output during transmission 6 6 6 6 Con Con Con Cont t t trol rol rol rol Cir Cir Cir Circ c c cuit uit uit uit The control circuit consists of a micr...

Page 6: ...pe ope ope Measurable frequency Audio frequency 4 4 4 4 A A A Audio udio udio udio dummy dummy dummy dummy lo lo lo loa a a ad d d d Impedance 8 ohm Dissipation 1W or more Jack 3 5mm 5 5 5 5 SS SS SS SSG G G G Output frequency 200MHz or more Output level 20dBu 0 1uV 120dBu 1V Modulation FM 6 6 6 6 S S S Sp p p pec ec ec ect t t trum rum rum rum A A A An n n na a a al l l ly y y yz z z ze e e er r ...

Page 7: ...1 11 Fr Fr Fr Fre e e equ qu qu que e e en n n nc c c cy y y y c c c coun oun oun ount t t te e e er r r r Measurable frequency Up to 200MHz Measurable stability Approx 0 1ppm 12 12 12 12 Lin Lin Lin Linea ea ea ear r r r d d d de e e et t t tec ec ec ect t t tor or or or Measurable frequency Up to 200MHz Characteristics Flat CN 60dB or more No No No Not t t te e e e Standard modulation 1kHz 2 5kH...

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Page 11: ...74 R175 15K 0402A R63 R147 2 22K 0402A R146 1 39K 0402A R87 1 R47 R49 R51 R145 R148 R149 R150 R152 56K 0402A R4 R14 2 R5 R8 R15 R17 R28 R46 R76 R77 R144 R184 R185 120K 0402A R61 R72 2 150K 0402A R50 1 180K 0402A R18 1 200K 0402A R7 1 220K 0402A R25 R180 2 270K 0402A R33 R35 2 390K 0402A R42 1 62K 0402A R90 1 0R 0603A L54 L55 2 0R 0805A L25 1 0P5 0402A C29 C42 C118 C169 4 1P 0402A C35 C40 C41 C175 ...

Page 12: ...35 C180 C195 C196 C207 105P 0402A C208 1 150P 0402A C57 C60 2 220P 0402A C55 C71 C205 3 222P 0402A C74 1 223P 0402A C182 1 C23 C33 C72 C94 C98 C101 C105 C110 C112 C114 C127 C165 270P 0402A C70 1 3P 0603A C10 1 4P 0603A C11 1 5P 0603A C6 1 6P 0603A C123 1 8P 0603A C4 C173 2 12P 0603A C3 C7 2 30P 0603A C2 1 470P 0603A C1 1 BAS277 ESC D2 D3 2 HSC277 ESC D5 D6 D25 3 MA2S111 ESC D7 1 TY USC D1 1 1SV220...

Page 13: ...L21 1 0 31 1 3 8T 0 31 1 3 L22 1 0 31 1 5 5T 0 31 1 3 L1 L2 L3 L5 4 2SJ243 ESM Q13 1 2SC4617 ESM Q11 1 DTC114EE ESM Q23 1 DTA114YE ESM Q26 Q27 2 R24 USM Q10 Q15 Q18 3 2SC4215 USM Q3 Q4 2 2SC4226 USM Q9 1 2SC3356 TSM Q8 1 2SK508NV TSM Q12 Q19 2 UMC4 USV Q14 1 2SK3078 SOT89 Q6 1 BF1212 SOT343 Q1 Q2 2 2SK4037 HWSON 2A Q5 1 R3111N451C SOT 23 5 Q29 1 24C32 SO8 U8 1 CHORD SO8 U2 1 31136 SSOP16 U1 1 LMX2...

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Page 17: ...R501 1 33K 0402A R2 R95 R503 R505 R506 5 R11 R84 R107 R115 R158 R170 51K 0402A R135 1 100K 0402A R122 1 120K 0402A R116 1 150K 0402A R172 R173 2 200K 0402A R113 1 270K 0402A R167 1 330K 0402A R97 1 750K 0402A R128 1 1M 0402A R108 R169 2 1M8 0402A R500 R502 2 R120 R123 R124 R126 R127 R129 0R39 R1206 R62 R130 R131 3 3K3 1210 L6 1 10P 0402A C19 C164 2 22P 0402A C16 1 52P 0402A C15 C21 2 68P 0402A C88...

Page 18: ...F 0805A E12X E17 2 4U7F 0805A E14 1 4U7F A E15 1 10UF A E3 E8 E20 3 22UF B E10 E12 2 47UF C E16 1 50K RV RV1 1 50K RV1 RV2 1 56NH 0603A L12 1 47NH 0603A L24 1 100NH 0603A L7 L9 L43 L44 4 220NH 0805A L4 1 HSC277 ESC D26 1 1SS372 USM D24 D9 2 HVC131 USC D4 1 LED RLED LED D14 1 GLED LED D15 1 D16 D17 D18 D19 D20 D21 D22 D23 DTC114EE ESM Q16 Q17 Q20 Q21 4 LG ESM Q25 1 2SC4617 ESM Q500 Q501 2 2SC2712 T...

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Page 20: ...D_RX SW POWER APC AF POW LCD_DRIVER PLL_DATA REG 5V POW VRX POW VTX POW VCX VOLTAGE RX_VCO TX_VCO LPF PLL IC TCXO FM IF CFW 450K IDC SQ_DET BATTERY EEPROM AF_OUT T R SECTION VCO SECTION FM IF AF SYSTEM CONTROL SECTION SYSTEM DETECT AMP COMPUTER KEY BOARD LCD_DIS VOICE DIAGRAM BLOCK QT DQT VOX VOX_DET AF_IN DC_SW MOD DC_SW RF AMP RF AMP RX TX SW RADIO DATA CTL AF AMP RF AMP VOICE_DATA CONNECT LED_T...

Page 21: ...K4 UP K8 1 K12 7 K16 4 K2 DOWN K6 2 K10 8 K14 5 K1 F K5 K9 K13 0 R148 47K R149 47K R150 47K R152 47K 5V 5V 5V 5V R180 220K C211 15P MCU 30 37 31 S24 S23 S4 S3 C3 PLLC 17 C2 RXI C1 C0 LCD 1 2 3 4 33 34 28 29 C205 220P C209 15P CR4 32K768 RXO 29 S0 5 C206 103P L53 101T R182 0R 12 11 10 38 C207 104P VDD AVDD RESET L54 0R L55 0R AVSS VSS XIN XOUT 3 4 5 6 7 2 1 6 7 59 60 79 80 41 40 39 36 35 34 33 32 2...

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